Installation for the separation of liquids



May l2, 1925.

s. KARPlNsKY E1' AL INSTALLATION FOR THE SEPARATION OP LIQUIDS Filed Jan. 1e. 1924. 2 santi-sheet 1.

HWS

"Malz, 1925. Y I 1,537,471 l s. K ARPlNsKY ET AL Y.

INSTALLATION FOR THE SEPARATION OF LIQUIDS Filed Jan. is. 1924 2 sheets-sheet 2 25 Z5 l y fa lzzcaer-l'jfs Patented May 12, 1925.

l i' i,537,471

UNITED STATES STEPHAN KARPINSKY, 0F SEVRES, AND JAMES STEWART ANDERSON, OF ST.O'UEN,

FRANCE.

PATENT OFFICE.

INSTALLATION FOR THE SEPARATION O'F LIQUIDS.

Application led January 16, 1924. Serial No. 686,686.

T0 all whom t may concern.'

Be it known `that we, STEPHAN KARPTN- SKY, a Russian citizen, and residing at Sevres, Seine et Oise Department, No. ll() Rue Brancas, in the Republic of France, and JAMns STEWART ANDERSON, a subject of the Kingdom of Great Britain and Ireland, and residing at Saint-Ouen, Seine Department, No. 114 Avenue des Batignolles, in the Republic of France, industrials, have invented certain new and useful Improvements in Installations for the Separation of Liquids, of which the following is a specification.

Our invention relates to an installation adapted for the separation of liquids of a complex nature into their constituent parts having different densities by the elfect of centrifugal force.

The said installation comprises a motor (animal or mechanical) two pumps actuated conjointly by the said motor and serving for the suction and Adelivery of two diiferent liquids, a turbine with tangential action adapted to be driven by the liquid discharged by one of the said pumps, and a separating vessel coupled directly to the turbine and serving to'treat the complex liquid discharged by the second pump. By the said combination, one liquid can be delivered to the turbine and the other to the separator, at different pressures in each case; the outputs of the two liquids may also be different, but they will always have a fixed relation, since the two pumps are combined. The turbine operating at a high pressure can be given as high a speed as may be desirable, so that the separating vessel directly coupled thereto may have the mini-l mum size, and a high degree of separation can be obtained; since the speed depends upon the output of the pump which is used for the purpose, while the output of the liquid under treatment will vary with the feed of the actuating liquid, it is evidentthatif the speed of the separating vessel increases or diminishes, the feed will increase or diminish in like manner, as is necessary in order to maintain a constant value for the degree of separation.

The pressure feed to the separating vessel will also further the rapid separation of the component parts of the emulsion or the mixture under treatment. In order to increase the hydrostatic pressure in the separating vessel, which is an important factor in the separation liquids, and chiefly in the case of a thin layer of liquid, it is preferable to provide a Very narrow passage for the outflow of the liquid along the periphery of the said vessel, thus producing a relatively high resistance to the flow.

The appended drawings show by way of example a constructional form of an installation according to our invention which is arranged for two distinct purposes, rstly the separation of a complex liquid such for instance as milk into its principal components, cream and butter-milk, and secondly the discharge of a mixture of liquidrand gas, for example milk or cream charged with air, into a converting device wherein the milk or cream containing air can be converted into butter.

Fig 1 is a general elevational view of the installation.

`Fig. 2 is a vertical section of the pumps on the line A*A of Fig. 4.

Fig. 3 is a like section on the line B-B of Fig. 1l.

Fig. 4 is a plan view of the pumps, with two of the pump cylinders removed.

Fig. 5 is a vertical section of the separator.

In the present example the two pumps are mounted upon a common base plate 1 and are actuated by the common'hand lever 2 pivoted on the axle 8. One of the pumps comprises two cylinders l of the single-acting type secured to the said base; within the mass of the latter are formed the conduits for the suction 5 and delivery G of the said pump, the latter conduit communicating at 7 with a bell 8 which is also mounted on the The second pump resembles the first-nien-y tioned pump; its suction conduit 18, which is connected by the pipe 19 with the tank 20 containing the milk or other liquid under treatment, supplies two single-acting cylinders 21 mounted on the main base plate and connected by a discharge conduit 22 with a pipe 23 bringing the liquid to the lower part of the separating vessel 24.

The pistons 25 in the cylinders 4 and 21 are connected by the piston rods 26 with the ends'of a cross-arm secured to the lever 2, the suction valves 28 and exhaust valves 29 are mounted inthe apertures affording respective communication between the con* duits 5,18, the conduits (i, 22, and the cylinders 4 and 21.

The operation of the lever 2 will thus produce on the one hand the continuous flow of water or other power liquid through 16, 17, 5, 4, 6, 8, 10, 11, 12, 14, 16 for the starting and driving of the turbine 13, and on the other hand the flow of the milk (or other liquid under treatment.) from the tank 2O through 19, 18, 21, 22, 23 and the separating vessel 24; the constituents separated by the `centrifugal action will be discharged at The turbine 13 of the tangential type and the separating vessel 24 of the suspended tubular type are mounted on a common vertical shaft30 which is suitably disposed in a frame 31 whereof the lower part forms a chamber 32 containing the separating Vessel and is provided with the tapered partitions for collecting the separated const-ituents discharged from the said vessel, and is further provided with the cover 35.

The bottom of said vessel supports by means of a plurality of radial flanges 36 a cylindrical body or co-re which almost entirely fills the said vessel, leaving only a narrow annular passage for the liquid; due to this arrangement, the liquid meets with a certain resistance when flowing through this space and it must be brought into the vessel under a certain pressure. This pressure, added to the pressure due to centrifugal force, will further the separation of t e products.

In the present constructiona-l form, the interior of the bell 8 comprises a conduit 38 connected with the discharge conduit 22 and provided with a valve 39 opening towards the interior of the bell and urged upon its seat by thespring 40. During the operation as above described, the Valve 39 will remain closed by the action of said spring and particularly by discharge pressure .of the power liquid which is greater than the pressure of the liquid under treatment by reason of the resistance to the outiiow through the injector 12.

' lhen the apparatus is used for the treatmean of milk or cream for direct butter-making, the conduit 23 is' closed for instance by the cock 41, the conduit 10`is cut off from the injector 12 by removing the coupling piece 42 disposed upon the pipe 11and the same is connected with an* apparatus 43 for converting the milk into butter. The suction conduit 5 is connected with the atmosphere either by emptying the container 16 or by turning a three-way cock 44 mounted on the pipe 17. In these conditions, the operation of the pumps will on the one hand cause the suction of lair through the pipe 17 and the conduit 5 and the discharge of the air through 6 into the bell 8,' while on the other hand the milk or cream will be withdrawn from the tank 20 through 19 and 18 and will'be discharged vthrough 22, 38 and the valve 39 into the samebell, and the milk or cream thus charged with air will be then delivered through 1.0, 11, 42 and 43. Obviously, the forms, arrangement constructional details of the apparatus herein represented may be varied without departing from the spirit of the invention, and in particular, the two pumps may be of Vany other suitabley construction, they may be mounted upon `two, distinct base plates, they can be driven by any yadequate motor, or they may be combined by adjustable connecting means for changing the ratio of their outputs at will, or like arrangements may be adopted; `the. separator may be mounted upon the pump base, or it may be otherwise disposed.

Claims:

' 1. In an installation for the separation of complex liquids, the combination of a pair of coacting pumps whereof one serves for the discharge of a liquid at lany suitable pressure and the vsecond for the discharge of the complex liquid submitted to the ,separa t-ion treatment, a centrifugal separator supplied by the pump discharging the said complex liquid, a turbine whose wheel ismounted on the shaft of the said separato-r and is supplied by the first-mentioned pump discharging liquid at any suitable pressure.

2. In an installation forthe separation of complex liquids, the combination of .a pair of coacting pumps whereof one serves for the discharge of a liquid at any suitable pressure and the second for the discharge of the complex liquid submitted .to the separation treatment, a centrifugal separator supplied by the pump discharging the said complex liquid, a turbine whose wheel is mounted on the shaft of the said separator and is supplied by the first-mentioned pump discharging liquidat any suitable pressure, each of the said pumps comprising two single-acting cylinders, a piston operating 'in each cylindder, a single cross-arm ladapted for the drive of both pumps at the same time, `and a lever for actuating the said cross-arm.

3. In an installation for the separation of complex liquids, the combination of a pair of coacting pumps whereof Ione serves for the discharge of `a liquid atY any 'suitable pressureand the second for the discharge of the complex liquid submitted to the separation treatment, a centrifugal separator supthe first-mentioned pump, the said bell servplied by the pump discharging the said ooming to maintain the pressure of the liquid pleX liquid, a turbine Whose Wheel is mounted at a uniform value. 10 on the shaft of the said separator and is In testimony, that We claim the foregoing 5 supplied by the first-mentioned pump disas our invention We have signed our names.

charging liquid at any suitable pressure, and STEPHAN KARPINSKY. a bell disposed between the said turbine and JAMES STEWART ANDERSON. 

